Soap holder



FIG. 1 is a top, front perspective view of a soap holder showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front view thereof, the right and left side elevational views and the rear view being identical thereto; and,

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a soap holder, as shown and described. 